"Cold tofurkey" is a term describing the actions of a vegan who gives up his habit or addiction at a single moment, rather than through gradually easing the process through tapering off or supplemental medication. The term allegedly derives from the comparison of a cold tofurkey carcass and the state of a withdrawing addict. It is often preceded by the word 'going', as 'going cold tofurkey'.

I heard Daniella's addicted to facebook...Yea, she is...the only way shes gonna quit it is by going cold tofurkey